GDSMOTU 4pc Wheel Spacers for Chevy GMC 6 Lug,1" Wheel Spacers 6x5.5 with 14x1.5 Studs for 99-18 Silverado 1500,00-18 Suburban 1500,95-18 Tahoe,03-14 Savana 1500,00-18 Yukon 1500,99-18 Sierra 1500 It mainly fits for CadillacEscalade 1999-2018ChevroletSilverado 1500 1999-2018Suburban 1500 2000-2018Tahoe 1995-2018GMCSavana 1500 2003-2014Sierra 1500(Only 6 Lug) 1999-2015Sierra Denali 1500 2007-2015Yukon 1500 2000-2018Yukon Denali 1992-2018 Thickness:1 inches/25mm; Vehicle bolt pattern:6x5.5/6x139.7; Wheel bolt pattern:6x5.5/6x139.7; Threads: M14x1.5. If you don't make sure whether this item fits to you, message us with your vehicle year, maker and model, we will find the item you need. The spacers are machined by CNC with 60 degree taper, bulge seat lug nuts. The studs of our spacers are grade 10.9, heat treated and hardened heavy duty studs for safety.